Faster-than-Nyquist (FTN) signaling [1]}, [2]}, [3]} has long been one of the promising communication paradigms for future high data rate wireless networks.
Different from the conventional methods of enhancing the data rate, which normally requires more time/bandwidth/spatial resources, FTN signaling
enhances the spectral efficiency by intentionally transmitting the symbols faster than the Nyquist rate.
More importantly, FTN signaling is able to achieve the ultimate capacity for the signal power spectral density (PSD) [4]}.
Therefore, FTN signaling has been widely proposed for various communication applications, such as satellite communications [5]}, and beyond 5G communications [6]}, [7]}.
